Xotbbwal-combtjstion ewghste



J. V. CARON.

INTERNAL COMBUSTION ENGSNE.

APPLiCATION FILED AUG.23| 1915.

Lwm.,

@amm Aug. 22, 191@ 3 SHEETS-SHEET l.

mgm@

"L V. CARON;

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED AUG23| 19l5.

Patented Aug. 22, 1916.

3 SHEETS-SHEET 2- I. V. CARON.

INTERNAL COMBUSHON ENGINE.

APPLICATION FILED UG.23, |915.

Patented Aug. v22, 1916.

3 SHEETS-SHEET 3- JOSEPH VICTOR CARON, F HAVE-RHILL, MASSACHUSETTS.

NTERNAL-COMBUSTION ENGINE.

To `allwhom it. .may concern:

l Be' it known that I, Josiirri VICTOR CARON,

` a citizen of tlieUnited States, residing at Haverhill, in the county ofEssex and State of Massachusetts, have invented certain newA and useful Improvements in Internal-Combustion Engines; and I do declare the following. to be.` a full, clear, and exact description of the invention, such as will enable othersl skilled in the art to which it appertains to make and use the same.

.My invention relates to improvements vin internal combustion engines and more lparticularly to those of the air cooled type, thel object of the invention being to provide any improved supplemental cooling means which will, simultaneously with reducing the temperature of the engine, heat the air passing to the carbureter and the mixture owing therefrom to the cylinders, thereby rendering sucli mixture highly volatile. v

With this general object in view, the invention resides in certain novel features of construction and in unique combinations of parts to be hereinafter fully described and claimed, the descriptive matter beingsupplemented by the accompanying drawingswherein:

Figures 1 and'2 are side elevations of an engine constructed in accordance withV my invention showing opposite sides thereof;

Fig.l 3 is substantially a central vertical ence characters longitudinal section; Figs. 4 and 5 are verticaltransverse sections as seen on the planes designated by the lines 4 4- a-nd 5-5 of Fig. 3 Figs. 6, 7 and 8 arehorizontal sections on the planes of the lines 6--6, 7 7 and 8-8 of Fig. 3; Fig. 9 is a horizontal section taken on the plane of the line 9 Fig. 10 is asimilar view taken on the line 10-10of Fig. 5.-

In these drawings which constitute a part of the application and in which like referdesignate parts throughout the several views, the' numeral 1 indicates the crank case of the engine whose upper half is foi-ined integrally with the lower ends of a plurality of upright integrally connected cylinders 2 having therein the usualA pistons 3 for operating the crank shaft 4. Preferably, though not necessarily, the outer sides of the numerous cylinders are provided with ribs 5 for cooling purposes as is common with air cooled:

engines. -I .Disposed between the two innermost cylcorresponding Specification vof Letters Patent.

Patented Aug. 22, i916.

AppIicaton led August 23, 1915. Serial No. 46,907.

-inders 2, and extending throughout the munication with a pair of carbureter outlet vports v9 which are disposed -between the 'disposed cylinder head 13,

" outermost cylinders 2 and the innermost as clearly shown in Fig. 3, the lower ends of the ports 9 being extended laterally and opening through one side of the crank case at points above the open lower end of the port 6.

Preferably, the outwardly extending portion of the port 6, and such portions of the two ports 9, are confined in a single housing l() which is formed integrally with the crank case and with the lower ends of the cylinders, this construction being not only simple and eiicient, but presenting an extremely neat appearance as clearly shown in Fig. 1. As likewise disclosed in this ligure, it is to the outer end of the housing-10 that the carbureter 8 is secured, preferably by screws or bolts 11.

. The ports 6 and 9 all open at the upper ends of the cylinders 2 as depicted clearly in Fig. 3, at which level, the ports 9 open into compartments 12 in a hollow horizontalli while the port 6 registers with a. port extension 14 in the form of a hollow partition disposed transversely of the head 13 at the center thereof. The compartments 12 into which the volatile mixture is drawn, are separated from additional compartments 15 into which the l compartment 15 having an outlet 17, while eachendmost cylinder' discharges its exhaust 'gases into smaller compartments each having an outlet 18. If desired, the three `outlets 17 and 18 may be connnected to an l appropriate type of exhaust manifold.

The intake an-d exhaust valves 19 and 2O respectively, are provided with upstanding ystei'ns ywhich Adrise' above fillet/,ip 'of the cylin der head 13 and which are engaged at their upper ends by appropriate rocker arms 21 actuated at proper intervals by a horizontal longitudinally disposed driven cam shaft 22.

l The shaft 1s rotatably mounted in beary ings carried by the opposite ends of a horizontally elongated 'housing 23 which is secured in contact with the upper edge oi an upstanding flange Qa which is formed integrally with the cylinder head, which rises from said head and surrounds the Valve stems, the space within the flange` beingin communication with the. interior of the housing 23 as clearly shown in Fig. 3, since the incoming air must be admitted first into the housing The latter is provided with openings 25 for this purpose. By the provision of the upstanding flange 24 and the fluid-tight casing 23, the space within said flange may be partially Filled with lubricating oil, whereby the valve stems will be oiled effectively, and whereby a certain amount of the oil used will be splashed upwardly upon the rocker arms Q1 and upon the cam Shaft, thereby etl'ectively lubricating these parts and causing them to run practically without noise.

X'Vhen the engine is in operation, the pistons ol2 the intaking cylinders, in traveling downwardly, will create partial vaculnns in the two ports f), in the carbureter, and in the port 6. In so doing, fresh air will be drawn through the openings 25, the port extension I4, and the port 6, into the carbureter. The air now mixes with the fuel. being drawn into the compartments l2 from which it passes into the engine cylinders at proper intervals controlled by the opening ot the intake valves. By drawing the air into the carburetor, and the mixture vfrom the latter through the ports adjacent the opposite sides ot' the cylinders, the latter are noticeably cooled and the explosive mixture is heated, thus rendering the same highly volatile to produce better results when. ignited in the engine cylinders.

From the foregoing description, taken in connection with the accompanying drawings, it will be obvious that the eonstrlurtion provided for the attainment otl the desired results, is simple and inexpensive, yet will be highly ellieient and durable.

In the drawings, certain specific details of construction have been shown for accomplishing probably the liest results, and in the preceding such details have been described, but obviously I need not be restricted thereto otherwise than to the extent to which the appended claims limit me.

I claim: l. The combination with an internal combustion engine including a pair of parallel cylinders, ot" a carbureter, an air intake port leading between said cylinders to said carbureter and continuing throughout the length of said cylinders, anda pair of out let ports leading .from the earbureter and .extending one throughout the length of eachcylinder at points remote from the other port.

:2. The combination with an internal combustion engine including a pair of parallel cylinders, of a carbureter, an air intake port leading between said cylinders to said carburet'er and continuing throughout the length of said cylinders, a pair of outlet ports leading from the carbureterand extending one throughout the length of each cylinder at points spaced from the outer port, all of said ports being open at the outer ends of the cylinders, a hollow cylinder head secured over said outer ends of the cylinders and into which-the outlet ports deliver, and a port extension in the head between the aforesaid outlet ports and registering with the intake port.

3. The combination with an internal combustion engine including a pair of parallel cylinders and a crank case at the inner end thereof, of a laterally extending boss formed* integrally with said cri nk case adjacent its connection with the cylinders, a carburetor secured to said boss and having adjacent its lower end a lresh air inlet and at its upper end a mixture outlet, an air intake port leading between two cylinders and through the boss to thi` air inlet of the carbureter, said port extending throughout the length et' said cylinders, and a pair of outlet ports lauling from the outlet ot the carburetor through the boss and throughout the length ot' said cylinders at points remote from the intake port.

nesses.

JOSEPH VICTOR CARON.

Witnesses:

Roi.' L. (lines, Baan D. HARVEY.

In testimony whereof' I have hereunto set my hand ln presence ot' two subscribing wit 

